/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is part of dcm4che, an implementation of DICOM(TM) in
 * Java(TM), hosted at http://sourceforge.net/projects/dcm4che.
 *
 * The Initial Developer of the Original Code is
 * Gunter Zeilinger, Huetteldorferstr. 24/10, 1150 Vienna/Austria/Europe.
 * Portions created by the Initial Developer are Copyright (C) 2002-2005
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 * Gunter Zeilinger <gunterze@gmail.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

package org.dcm4che2.hp;

import java.util.Calendar;

/**
 * @author gunter zeilinger(gunterze@gmail.com)
 * @version $Revision: 455 $ $Date: 2005-10-24 02:58:04 +0200 (Mon, 24 Oct 2005) $
 * @since Oct 21, 2005
 *
 */
public class RelativeTimeUnits
{
    public static final RelativeTimeUnits SECONDS = 
            new RelativeTimeUnits("SECONDS", Calendar.SECOND);
    
    public static final RelativeTimeUnits MINUTES = 
            new RelativeTimeUnits("MINUTES", Calendar.MINUTE);
    
    public static final RelativeTimeUnits HOURS = 
            new RelativeTimeUnits("HOURS", Calendar.HOUR_OF_DAY);
    
    public static final RelativeTimeUnits DAYS = 
            new RelativeTimeUnits("DAYS", Calendar.DAY_OF_MONTH);
    
    public static final RelativeTimeUnits WEEKS = 
            new RelativeTimeUnits("WEEKS", Calendar.WEEK_OF_YEAR);
    
    public static final RelativeTimeUnits MONTHS = 
            new RelativeTimeUnits("MONTHS", Calendar.MONTH);
    
    public static final RelativeTimeUnits YEARS = 
            new RelativeTimeUnits("YEARS", Calendar.YEAR);
    
    private final int calendarField;

    protected final String codeString;

    private RelativeTimeUnits(String codeString, int calendarField)
    {
        this.codeString = codeString;
        this.calendarField = calendarField;
    }

    public final int getCalendarField()
    {
        return calendarField;
    }
    
    public final String getCodeString()
    {
        return codeString;
    }

    public static RelativeTimeUnits valueOf(String codeString)
    {
        try
        {
            return (RelativeTimeUnits) 
                    RelativeTimeUnits.class.getField(codeString).get(null);
        }
        catch (IllegalAccessException e)
        {
            throw new Error(e);
        }
        catch (NoSuchFieldException e)
        {
            throw new IllegalArgumentException("codeString: " + codeString);
        }
    }
}
